/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="manager"> Info about data to be received </param>
private void WaitForData(ReceiveManager manager)
{
try
{
Socket.BeginReceive(manager.Buffer,
manager.Index,
manager.Buffer.Length - manager.Index,
SocketFlags.None,
DataReceived,
manager);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
/// <summary>
/// Waits for more data to arrive
/// </summary>
/// <param name="manager"> Info about data to be received </param>
private void WaitForData(ReceiveManager manager)
{
try
{
Socket.BeginReceive(manager.Buffer,
manager.Index,
manager.Buffer.Length - manager.Index,
SocketFlags.None,
DataReceived,
manager);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
}
}
/// <summary>
/// Data received event handler
/// </summary>
/// <param name="iar"> IAsyncResult of the data received event </param>
private void DataReceived(IAsyncResult iar)
{
ReceiveManager manager = (ReceiveManager)iar.AsyncState;
try
{
int received = Socket.EndReceive(iar);
manager.Index += received;
if (manager.Index == manager.Buffer.Length)
{
byte[] data = manager.Buffer;
switch (manager.State)
{
case ReceiveState.Header:
int packetLength = MapleCrypto.GetPacketLength(data);
manager.State = ReceiveState.Content;
manager.Buffer = new byte[packetLength];
manager.Index = 0;
WaitForData(manager);
break;
case ReceiveState.Content:
ReceiveCrypto.Crypt(data);
MapleCustomEncryption.Decrypt(data);
PacketReceived(new MaplePacketReader(data));
WaitForData(new ReceiveManager());
break;
}
}
else
{
Console.WriteLine("[Warning] Not enough data");
}
}
catch (Exception e)
{
Console.WriteLine(e.Message);
Console.WriteLine(e.StackTrace);
Close("Exception while receiving data.");
}
}
